Very impressive!
I think these guys are great. Really an inspiration to keep in shape as we get older!
On a somewhat related note, a few weeks ago in the gym at school where I train, there was an older guy, maybe in his 50s. He was a dead ringer for Rusty Jeffers, bald head and mustache in fine form, wearing a t-shirt styled just like the "Arnold is numero uno" shirt from Pumping Iron that said "Old guys can still pump iron."
Loved that.